Introduction: Appendicitis is the most common surgical emergency in childhood. It's a common surgical disease that can be presented with a wide variety of atypical clinical features. Clinical Case: We report a case of a 7-year-old female patient admitted for abdominal pain dating back 20 days, radiological exploration suggested a right ovarian teratoma, while laparoscopic exploration has objective an appendicular abscess. Conclusion: This case has allowed us to clarify an atypical case of complicated appendicitis, and also to show the contribution of laparoscopy.

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Introduction: Desmoid tumors are benign soft tissue tumors, but their infiltration character is responsible for big morbidity, especially in the cervicofacial location. Their management, therefore, represents a real challenge. Clinical case: Reporting a case of a 4-year-old girl presenting a desmoid tumor at the expense of the mandibular corpus and the right ascending ramus, with loco-regional infiltration, and whose treatment consisted of surgical resection of the tumor with Hemi-mandibulectomy and reconstruction according to the Masquelet technique. Conclusion: The traditional treatment consists of a large local excision with negative surgical margins. Head and neck fibromatosis, while rare, present a complex problem as they are often aggressive, and invade local bone, nerve and muscles, and can leave patients with a cosmetic deformity. In our case, it was a mandibular reconstruction after a large resection of a desmoid tumor with a location on the head and neck. With good consolidation, absence of recurrence, and without aesthetic sequelae at the control.